| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to surely transfer shear strength to an anchor bolt by completely eliminating a slip of a base plate. SOLUTION: After the inside of a bolt through-hole 1a is filled with granular metals 3, 3..., arc-welding is made from an upper layer side of the granular metals 3, 3..., and molten joint of contact points among the granular metals 3, 3... is made. At least an upper layer site of a group of granular metals 3, 3... is filled with molten metals to fix a group of granular metals 3, 3....
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